Clam shells are a food solid waste that increases and accumulates every day, causing environmental pollution. (Anadora granosa) contain chitin. Chitin can be processed into chitosan, which effective in absorbing heavy metals. To increase absorption, chitosan modified membrane. The purpose of this study was to analyze the membrane's ability from blood clam reduce levels iron water. design pure e...

Silver-exchanged zeolites and clays are used in polymer composites to confer broad-spectrum antimicrobial properties on a range of functional materials. Tobermorite is a layer lattice mineral whose potential as a carrier for Ag ions in antibacterial composites has not yet been investigated. Accordingly, in this study, synthetic tobermorite was ion-exchanged with 10 wt% silver ions and the resul...

Chitosan has been extracted from different marine crustacean from the Black Sea of Bulgarian Gulf. The contents of the various exoskeletons have been analyzed and the percent of the inorganic salt , protein, chitinand chitosan was determined. Deacetylation of the different chitin produced was conducted by the conventional thermal heating method. The chitosan was characterized by elemental analy...

Due to the fact that some individuals are allergic to crustaceans, the presumed relationship between allergy and the presence of chitin in crustaceans has been investigated. In vivo, chitin is part of complex structures with other organic and inorganic compounds: in arthropods chitin is covalently linked to proteins and tanned by quinones, in fungi it is covalently linked to glucans, while in b...

Chitosan is a chitin-derived fiber, extracted from the shellfish shells, by-product of fish industry, or fungi grown in bioreactors. In oenology, it used for control Brettanomyces spp., prevention ferric, copper, and protein casse clarification. The International Organisation Vine Wine established exclusive utilization fungal chitosan to avoid eventuality allergic reactions. This work focuses o...

Chitin was first discovered by its name from the Greek word “chiton”, which means “mail coat”. It is indeed a polysaccharide made up of naturally occurring acetyl-D-glucosamine monomers. Hatchett researcher who extracted chitin shells mollusks (crabs and lobsters), prawns, crayfish in 1799. Later 1811, Henri Braconnot cell walls mushrooms called it “fungine”. chitosan are abundant biosphere as ...

To solve the water pollution problem by toxic heavy metal contamination resulting from humans technological activities has for long presented a challenge. Biosorption can be a part of the solution. Some types of biosorbents such as seaweeds, molds, yeasts, bacteria or crab shells are examples of biomass tested for metal biosorption with very encouraging results. The uptake of heavy metals by bi...

Chitin is the most abundant natural biopolymer that can be converted to chitosan, which has various biomedical applications. This study was conducted to investigate the antioxidant activity of chitosan extracted from shrimp shells on body weight of broiler chickens. The study comprised three experiments. In experiment 1, shrimp (Penaeus merguiensis) shells were demineralized using HCL (1N), dep...